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प्रश्न
State whether the following statement is true or false. If false, correct them.
Plants consume oxygen for respiration.
विकल्प
True
False
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उत्तर
True
Explanation:
-
Just like animals, plants also respire.
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During respiration, plants take in oxygen and release carbon dioxide, especially at night when photosynthesis stops.
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This process helps them break down food (glucose) to release energy.
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संबंधित प्रश्न
Answer the question put against the following constituents of air :
Water vapours : Explain their role in modifying the earth’s climate.
Name three different appliances where air is utilized.
Match the statements in List 1 with the correct answers in List 2
| List 1 | List 2 | ||
| 1 | An impurity in air | A | Water vapour |
| 2 | The component of air which supports combustion | B | Respiration |
| 3 | The inert component in the air slightly soluble in water | C | Rare gases |
| 4 | The component of air which minimizes the rate of evaporation | D | Sulphur dioxide |
| 5 | The process which involves oxidation of food substance in living organisms | E | Helium |
| 6 | The component of air which finds application in observation balloons | F | Carbon dioxide |
| 7 | The process which involves oxidation of substances, liberating heat and light energy | G | Combustion |
| 8 | The component of air which is heavier than air and fairly soluble in water | H | Nitrogen |
| 9 | The process by which atmospheric carbon dioxide is absorbed by plants resulting in the formation of carbohydrates | I | Photosynthesis |
| 10 | The component of air which is lighter than air and less than 1% in air | J | Oxygen |
Complete the statement given below by filling in the blank with the correct word from the words given:
The product formed which is common to both combustion and respiration is ______.
Complete the statement given below by filling in the blank with the correct word from the words given:
The component of air which is variable in air above sea level and in air in general ______.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Carbon dioxide, water vapour and energy in the form of heat are evolved during respiration.
Classify the following.
( Dog, Cat, coconut tree, monkey, brinjal plant, papaya plant)
| Things which give out oxygen | Things which give out carbon dioxide |
How will you prove that air supports burning?
Venus's atmosphere consists of roughly 96 – 97% of ______.
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Nitrogen
